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• XCode Intellisense Question

  - by Cody C

  I've always seem to work around this lack of knowledge but I thought I would ask the community. I hope this question will make sense. In XCode, when I call a function that has several parameter the intellisense pops up. When I hit TAB the first time, it takes me directly to the first parameter. How do I get to the next parameter easily. If I hit TAB again, it puts an actual TAB in the line. For the last month I've been using arrow keys but I figured there must be a keyboard shortcut.

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• iPhone: Having trouble figuring out how to scroll a UITableView with custom UITextField cells automa

  - by Gordon Fontenot

  Ok, I know this seems like a duplicate question, but don't think it is. I actually have this implemented already (thanks to this SO question), but it seems sluggish. I am willing to tweak it a bit, but I ran across a demo app by AboutObjects that seems to have exactly the right functionality with absolutely no code doing it. I have looked through their demo code dozens of times, and I can't figure out what they are doing that I am not. The code to look at is in their iPhone Development Tutorials section, and is called "Editable TableView" (2nd from the bottom). There are a couple of questions on the forums on that site asking how they got the functionality, but there is no answer (other than "It's a built in function"). Does anyone have any clue as to why their UITableView would implement the input scrolling by default (including being able to scroll the view manually when the keyboard pops up, which I cannot get to work)?

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• How to capture shift-tab in vim

  - by Yogesh Arora

  I want to use shift-tab for auto completion and shifting code blocks visually. I have been referring to Make_Shift-Tab_work . That link talks about mapping ^[[Z to shift-tab . But i don't get ^[[Z when i press shift-tab. i just get a normal tab in that case. It then talks about using xmodmap -pke | grep 'Tab' to map tab keys. According to that the output should be keycode 23 = Tab or keycode 23 = Tab ISO_Left_Tab However i get keycode 22 = Tab KP_Tab if i use xmodmap -e 'keycode 22 = Tab ISO_Left_Tab' and after that xmodmap -pke | grep 'Tab', I still get keycode 22 = Tab KP_Tab This means running xmodmap -e 'keycode 22 = Tab ISO_Left_Tab' has no effect. In the end the link mentions using xev to see what X recieves when i press shift-tab. But i dont have xev on my system. Is there any other way i can capture shift-tab in vim

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• Many-to-Many Relationships in MySQL

  - by Kaji

  I've been reading up on foreign keys and joins recently, and have been pleasantly surprised that many of the basic concepts are things I'm already putting into practice. For example, with one project I'm currently working on, I'm organizing word lists, and have a table for the sets, like so: `words` Table `word_id` `headword` `category_id` `categories` Table `category_id` `category_name` Now, generally speaking this would be a one-to-many relationship, with several words being placed under a single category with the foreign key category_id. Let's assume for a moment, however, that a user chooses to add another category to a word, making it many-to-many—Is there a way to set up my words table to handle additional categories for words without creating extra columns like category_2, category_3, etc.?

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• heroku complaining about my public key created by ssh-keygen2

  - by yuri

  I am trying to access my heroku app from work (windows machine). I installed cygwin on the machine and generated ssh-key as well. However, I get the below error: C:heroku keys:add "C:\cygwin\home\4541450\[email protected]" Uploading ssh public key C:\cygwin\home\4541450\[email protected] Enter your Heroku credentials. Email: [email protected] Password: Uploading ssh public key C:\cygwin\home\c54550\[email protected] ! Contents Invalid public key / Contents Invalid public key / Fingerprint can 't be blank I generated the ssh key with the command below. ssh-keygen2 "[email protected]" -t rsa ssh-keygen is not available with this cygwin.

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• How to implement multi relationship in MS SQL?

  - by Ethan

  I’m trying to design a database to use with ASP.net MVC application. Here is the scenario: There are three entities and users can post their comments for each of these different entities. I just wonder how just put one table for Comments and link all other entities to it. Obviously, Comments table needs 3 references (foreign key) to those tables but as you know these foreign keys can’t be null and just one of them can be filled for each row. Is there any better way than implementing three different tables for each entity’s comments? Cheers Ethan

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• Disabling single line copy in Visual Studio

  - by erlando

  Is there anyway to disable the rather annoying feature that Visual Studio (2008 in my case) has of copying the line (with text on it) the cursor is on when CTRL-C is pressed and no selection is made? I know of the option to disable copying blank lines. But this is driving me crazy as well. ETA: I'm not looking to customize the keyboard shortcut. ETA-II: I am NOT looking for "Tools-Options-Text Editor-All Languages-Apply cut or copy to blank lines...".

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• What is an SSH key?

  - by acidzombie24

  I signed up for github and notice the ssh key option which looked interesting. I originally expected something like an ssl key (name, co name, etc). After going through it i notice i only put a password and it is always myuser@comp-name (this is windows). Why? I thought it was a user/pass id and i can create separate keys for separate purpose for privacy reasons. Now i see i am required to use one to create a repository. Also i see something about a 'private key file' when looking at options. What exactly is an SSH Key and how can i create a separate user without creating a separate login in windows.

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• How to use ctrl-i for an emacs shortcut without breaking tabs

  - by mksuth

  I want to redefine the emacs keyboard shortcut control-i to be "MOVE CURSOR UP" To do this, I added the following line to my .emacs file: (global-set-key (kbd "C-i") 'previous-line) What I then discovered is that the tab key, by default, does whatever is bound to control-i, which is obviously not what I want. So, to restore normal tab behavior, I added this to my .emacs file (global-set-key (kbd "<tab>") 'indent-for-tab-command) This mostly works. BUT, tab no longer works for auto-completing commands in the mini buffer. How can I fix that? Or is there a better way of going about this? Thanks.

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• PowerShell script to restart a service

  - by Guy Thomas

  My mission is to press a keyboard sequence, such as Ctrl +Shift +R, to restart a Windows Service. I have a script which works fine in the PowerShell ISE, when launched with administrative privileges. When I try with a PowerShell script it fails due to insufficient Administrative Privileges. It’s galling that I can get it to work with an old-fashioned bat file, but not PowerShell. The root of the problem is that shortcuts to a PowerShell script have their Administrative privileges box greyed out. So far no work-around has overcome this privilege problem. Any ideas?

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• how to send keystrokes to maplestory?

  - by blood

  hi i play a game called maplestory because a LOT of my friends do and i want to talk to them online and they will only chat on maplestory because they are playing it. i would like to build a program that will send my chats to maplestory and it will be a small little chat window because i can't do much well im chatting on Maplestory. i have tryed sending my fake input to maplestory but their anti-hack shield blocks it, i can't find a way by it with out running a by pass to their anti-hack shield which i don't really want to do :( so i need a way to send stuff by so i can chat. please don't tell me to use a by pass i really would like to find a way to leave it running. also i only really need keyboard input not really the mouse because to chat you only have to hit enter then type text then enter to send, but hey it might come in useful. also if the way only works for the top window i can just make something that swhitchs back and forth.

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• C#, WinForms: What would prevent KeyDown events from chaining up from focused control up to main For

  - by blak3r

  As i understand it, when a keyboard button is pressed it should invoke the KeyDown event for the control which has focus. Then, the KeyDown for the parent control, so on and so forth until it reaches main form. UNLESS - along the chain one of the EventHandlers did: e.SuppressKeyPress = true; e.Handled = true; In my case, KeyDown events never get to the main form. I have Form - Panel - button for example. Panel doesn't offer a KeyDown Event, but it shouldn't stop it from reaching the main form right? Right now as a work around I set every single control to call an event handler I wrote. I'm basically trying to prevent Alt-F4 from closing the application and instead minimize it.

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• How to implement multi relationship in SQL Server?

  - by Ethan

  I’m trying to design a database to use with ASP.net MVC application. Here is the scenario: There are three entities and users can post their comments for each of these different entities. I just wonder how just put one table for Comments and link all other entities to it. Obviously, Comments table needs 3 references (foreign key) to those tables but as you know these foreign keys can’t be null and just one of them can be filled for each row. Is there any better way than implementing three different tables for each entity’s comments?

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• ^+Left Arrow and ^+Right Arrow suddenly stopped working on OS X

  - by user293261

  Hello. I'm not really sure what to make of this. The key combination of ^← and ^→ have stopped working for one of the two users on my OS X installation. I use these keys all the time (switching tabs in terminal, IntelliJ primarily), and it's driving me crazy. On one user account, it works fine. On the other, it doesn't. This happened today and nothing significant comes to mind that would have caused some weird keybinding issue. If anyone has heard of or experienced anything like this, I would very much appreciate your advice! Thanks.

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• Teaching a kid to type in order to start programming

  - by at

  My 5 year old wants to start programming, but he doesn't yet know how to type without looking for each letter 1 at a time. I know it's going to frustrate him to go so slow because of his typing speed. And it's not going to be fun looking for all the letters constantly... So what's the best way to get him to type fast? Clearly he'll need to type a lot of punctuation like semicolons, colons and symbols. So his little hands will have to get used to spreading over the keyboard... I did some google searches and found some very poor looking apps that focused on the letters.

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• Next/Last word with Netbeans in Mac OSX

  - by Phuong Nguy?n

  I've just switched to Mac OSX from Ubuntu. The development on Mac OSX using Netbeans is really a joy (of hell, though) I don't know how to go to next word, last word using keyboard. In windows or ubuntu, this should be Ctrl+Left/Right, but definely not in Mac. In Mac, such key combinations result in go to begin/end of line. Futhermore, the use of Home and End is for something else, not go to begin/end of line (What a cool hell). Is there another key combination? I prefer default key settings, please. I'm sick of going around with custom script.

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• MySQL foreign key constraints, cascade delete

  - by Cudos

  Hello. I want to use foreign keys to keep the integrity and avoid orphans (I already use innoDB). How do I make a SQL statment that DELETE ON CASCADE? Secondly, that using DELETE ON CASCADE. E.g. if I delete a category then it would delete products related to that category even though there are other categories related to those products. The pivot table "categories_products" creates a many-to-many relationship between the two other tables. categories - id (INT) - name (VARCHAR 255) products - id - name - price categories_products - categories_id - products_id

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• I need to add a KeyboardEvent to a movie clip in Flash cs4 AS 3.0

  - by psy-sci

  I have a movieclip called keyCButton that I want to add a keyboardEvent ("C" Key) to. This will play an animation from frames 2-30 with a sound. I have watched a few tutorials but still haven't gotten the correct information to make it work. The following is my code. stage.addEventListener(KeyboardEvent.KEY_DOWN, cNote); function cNote(event:KeyboardEvent):void { if (event.keyCode == Keyboard.SPACE) { keyCButton.gotoAndPlay(2) } } at frame 30 the code tells it to stop and then go back to frame 1 This works for the MouseEvent.CLICK but the KeyboardEvent does nothing.

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• efficiently trimming postgresql tables

  - by agilefall

  I have about 10 tables with over 2 million records and one with 30 million. I would like to efficiently remove older data from each of these tables. My general algorithm is: create a temp table for each large table and populate it with newer data truncate the original tables copy tmp data back to original tables using: "insert into originaltable (select * from tmp_table)" However, the last step of copying the data back is taking longer than I'd like. I thought about deleting the original tables and making the temp tables "permanent", but I lose constraint/foreign key info. If I delete from the tables directly, it takes much longer. Given that I need to preserve all foreign keys and constraints, are there any faster ways of removing the older data? Thanks.

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• How can I disable the F4 key from showing the items in a ComboBox

  - by Alex

  You might not know this, but pressing the F4 key on a ComboBox makes it's drop-down item list appear. I believe this is the default behavior on Windows. Does anyone know how to override this behavior in WPF (C#)? I know that overriding default behavior is generally seen as bad practice, however in this case I have a rugged-device that runs XP Embedded. It has a handful of prominent Function keys (F1-F6) that need to trigger different events. This works fine, however when focused over a ComboBox the events aren't triggered as the ComboBox drops down. I have tried catching the KeyDown event both on the form and on the ComboBox and listening for the F4 key, however it doesn't get this far as the key press must be handled at a lower level. Any ideas? Thanks.

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• What are the repercussions of not checking existing data when adding a foreign key?

  - by scottm

  I've inherited a database that doesn't exactly strive for data integrity. I am trying to add some foreign keys to change that, but there is data in some tables that doesn't fit the constraints. Most likely, the data won't be used again so I want to know what problems I might face by leaving it there. The other option I see is to move it into some kind of table without referential constraints, just for historical purposes. So, what are the repercussions of not checking existing data? If I create a foreign key constraint on a table and don't check existing data, will all new data inserted into the table be enforced?

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• OS X Terminal: Meta key + alt functionality at the same time

  - by abababa22

  Is there a way to use "alt/option" key as a meta key but still be able to use the key to make some characters which need it? For example in my local keyboard layout: @ is alt-2 \ is alt-shift-7 | is alt-7 etc. So if I set alt as meta key, I can't make those characters. On the other hand using "press esc, release esc, press a key" to make meta key sequences makes my hands hurt. Any emacs users with international keyboards who have solved this, please give any tips you might have! :) edit: It appears that I can set alt as meta key and then add these kind of settings in inputrc: "\e2": "@" This works in bash shell but it still won't work with emacs though, so no good.

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• Error 1005 when adding a foreign key constraint on mysql table

  - by luc

  Hello, I have a problem when upgrading a django and mysql app with south. I've tried to make a sql-based upgrade with the code generated by the django sqlall command and I have a similar problem. Here is the sql code: CREATE TABLE `programmations_basissupport` ( `id` integer AUTO_INCREMENT NOT NULL PRIMARY KEY, `value` numeric(6, 0) NOT NULL ) ALTER TABLE `programmations_concert` ADD `basis_support_id` integer AFTER program_status_id; ALTER TABLE `programmations_concert` ADD CONSTRAINT `basis_support_id_refs_id_1e4ed8d7` FOREIGN KEY (`basis_support_id`) REFERENCES `programmations_basissupport` (`id`); An error is raised when adding the FK constraint: ERROR 1005 (HY000): Can't create table 'apidev_mnl.#sql-106e_632b00a' (errno: 150) Does anybody have an idea? Update: DEFAULT values where missing but even if I add the default='' in the django model, the creation of foreign keys fails. Thanks for your help

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• Go to file in Visual Studio

  - by Effata

  I've recently started a new job working with webdevelopment in .NET. Coming from a php and rails background i've been working mainly in Eclipse and NetBeans, along with some TextMate. I find myself missing a few great keyboard shortcuts and i can't seem to find a Visual Studio equivalent. NetBeans has the awesome "Go To File" and so does Eclipse with this plugin. Eclipse also has the option of quick searching in the open file list with Cmd/Ctrl-E. Is there something like this in Visual Studio? Either build in or via plugin. Or is there some other way of quickly navigating between files that's prefered?

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• How to programmatically switch to a specific window in compiz?

  - by FossilBit

  Is there a command to tell compiz that we want to bring in front and set focus to a specific window? How should we identify the window in that command? The reason behind this question is the following use-case: Suppose we have a wiki to keep notes of anything interesting we find out. It would be very convenient to have a keyboard shortcut to bring the browser window with our Wiki page in front and start typing immediately then with another key combination switch to the application we were working before I know that "ALT+TAB" switches between the last two used windows but cannot support more complex combinations of applications. E.g Browser+Eclipse+ Wiki If there is a command like the one described, it is easy to add a shortcut to it from KDE or GNOME interface Thanx ...

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